mixee



1 (No Model.) 5 Sheets-Sheet 1.

- W. M. MIXER.

- ICE MACHINE.

No. 290,911, Patented Dec. 25, 1883.

\ w WW3 WJPQMM n PEKRS Phola Lillnpnphr-r Washinglau u c v (No Model.) 5 Sheets-Sheet 2.

W. M. MIXER.

ICE MACHINE. 7. No. 290,911. Patented Dec. 25, 1883.

(No Model.) 5 Sheets-Sheet 3.

W. M. MIXER.

10E MACHINE. No. 290,911. Patented Dec. 25, 1883.

(No Model.) 5 Sheets-Sheet 4.

W. M. MIXER.

ICE MACHINE. No. 290,911. Patented Dec. 25 1883.

W m t P- N r m y I JIC i fl ylLi'fic E] 5 Sheets-Sheet 5.

(No Model.)

W. M. MIXER.

ICE MAGHINE.

Patented Dec. 25, 1883.

Urrnn ra'rns PATENT tries.

\VILLIAM M. MIXER, OF NEW YORK, N. Y.

ICE-MACHINE.

SPECIFICATION formingpart of Letters Patent No. 290,911, dated December 25, 1883,

Applicationfilcd October 2, 1583. (No model.)

To aZZ whom it may concern-.-

Be it known that I, WILLIAM M. MIXER, a citizen of the United States, and aresident of the city, county, and State of New York, have invented certain new and useful Improvements in Ice-Machines, of which the following isa specification,

My invention relates to that class of icemachines which use compression-pumps for condensing the refrigerant, and known as compression-machines; andit consists in the arrangement of the engine, compressing-cylinders, and intermediate parts, as fully described hereinafter, so as to simplify the construction, reduce the number of parts and amount of space occupied, and avoid the frietion and loss of power incident to ordinary constructions.

Myinvention further consists in apeculiarlyconstructed valve arrangement, and in certain details, hereinafter fully set forth.

In the drawings, Figure l is a perspective View of sufficient of the compressioncylinders and steam-engine to illustrate my invention. Fig. 2 is an elevation enlarged, in section through the vertical compression-cylinders and their supports and connections. Fig. 3 is a side elevation in part section of a vertical compression-cylinder, supporting-frame, and piston-operating appliances. Fig. 4 is a section of. one leg of the frame onthe line 1 2, Fig. 3, showing its tubular form. Fig. 5 is a detached view in section of one of the compression-cylinders and valvechest and valves; Fig. 6, a detached view of a valve-chest with side caps removed; Fig. 7, an elevation in part section of one of the compression-cylinders; Fig. 8, a plan of the compression-cylinders, the valve-chest in section.

The frame of the apparatus is constructed in any suitable manner to support the cylinder A of a steam-engine, the bearings G O, for the straight shaft B of the engine, and two vertical compression-cylinders, D D, each of which is single-actin g, pumping on the upstroke, and is provided with a piston, E, )istonrod F, and connecting-rod G. One of the connecting-rods engages with a wrist-pin, a, projecting from a crank wheel or disk, H, upon one end of the shaft 13, and the other connecting-rod is connected to a wrist-pin, b, of a crank wheel or By the arrangement above described, reciprocating motions are imparted to the pistons E E from the engine without the use of the double cranks, drag-cranks, double wheels,

and forked rods heretofore employed, whereby I avoid not only the expense incident to the construction of such parts, but also largely reduce the space occupied by the machine, and dispense with a multiplicity of pillow-blocks and bearings, which are expensive, difiicultto keep in line, and result in much friction and loss of power.

To secure greater strength and steadiness with reduced weight of material, I construct each of the upright frames K, which support the cylinders D D and the guides e, of cast metal, with tubular converging side pieces or columns, 1'' f, flanged at the lower ends and bolted to the bed-frames G and connected by the web to which the guides e are secured, being in some instances cast therewith.

To the upper ends of the frames K is bolted the platform L, which surrounds the cylinders D D. The lower head of each compressioncylinder is provided with a suitable packingbox is dished to constitute a receptacle for oil which may be forced past the piston by the excessive pressure above the latter, and provided with a port or pipe, h, which extends inward to a considerable extent, as shown in Fig. 7, so as to maintain a body of oil around the piston-rod within the cylinder, but permit a free discharge of any surplus oil which would collect above the line m m, Fig. 7. A ven.tpipe, 17, communicates with the channel or pipe h and conducts the oil to a suitable receptacle. An annular flange, j, projects inward from the head It around the piston-rod, and serves to scrape off from the latter any matter which would otherwise adhere thereto, thereby tending to prevent the wearing away of the packing and leakage around the rod. Each valve-chest M is provided witha central chamber, in, communicating laterally with a port, a, at the upper end of the cylinder, and

at the lower end with a suction-pipe, N, for the incoming refrigerant, and the upper end with a pipe, P, through which the gas is forced outward under pressure. The chainberm communicates with the lower port, 1), through an oblong port or opening, 8, in a raised valveseat, 2, and with the upper port, q, through an oblong port, 5, in a raised valve-seat, 15, extending into the chamber m.

In the opposite sides of the chambers m m are vertical slots y 1 into which extend the ends of rectangular blocks Q, which rest upon the valve-seats it, and constitute the valves. The blocks Q may be held upon the seats by their own weight or under the pressure of suitable springs, and may consist of wood, compressed pulp, metal, or any suitable material or composition. The valves thus constructed and arranged rise freely and with little or no friction, close quickly, wear evenly, and may be readily fitted to their seats and easily removed and replaced.

To facilitate the adjustment or removal of the valves, the slots 3 y are made through the sides of the chest M and are closed by caps u, so bolted externally to said sides as to be readily detached and connected. The valves may, however, be differently located. One may be placed on theside and one on the top of the compression-cylinder, or they may be both placed on the top.

As the operation of the machine thus constructed will be obvious to those familiar with the art, it will be unnecessary to describe it here further than to state that the descent of the piston E draws the refrigerant through the ports p s n and chamber m, lifting the lower valve, Q, and the ascent of the piston forces the gas through the ports a s q and chambers m m into the pressure-pipe, lifting the upper valve. XVhere the machine is small, it may be driven by a belt from a driving shaft, the belt passing to a pulley on the shaft B.

I claim 1. The combination, in an icemachine, of

a frame supporting inverted vertical c0n1pressor-cylinders and a driving shaft arranged in bearings below said cylinders, having aflywheel attached thereto between said bearings, and provided with cranks or crank-disks at the ends connected to the rods of the cylinders, substantially as described.

3. The frames K, supporting the upright cylinders, consisting each of. tubular converging side pieces and a connecting-web, substantially as set forth.

4. The inverted compression-cylinder provided with an oil-discharge pipe or port extending from the lower dished head inward, substantially as specified.

5. The compression-cylinder provided with a dished head at the lower end, having an inwardly-projecting annular flange, J, around the piston-rod, for the purpose set forth.

6. The compression-cylinder provided with an inlet and outlet port or ports, n, and with a valve-chest, M, having chambers in m, valveseats, and ports p 88 q, and rectangular blockvalves extending into vertical slots in the sides of the chest, substantially as set forth.

7. The valve-chest M, connected to the cylinder D, having inlet and outlet ports at its opposite ends, valveseats, and block-valves Q, extending into slots in the sides of the chest covered by caps a, substantially as specified.

8. The combination, in a pumping-engine, of a revolving shalt provided with a fly-wheel intermediate between two pillow-blocks, and with cranks at the ends of the shaft exterior to said pillow-blocks, and with two pumping-cylinders-one connected to each of said cranks-and of an engine connected likewise to one of said cranks,substantiall y as described.

9. The combination, in a pumping-engine, of an engine, a straight shaft provided with cranks or crank-wheels at opposite ends, and vertical compressor-cylinders arranged above said cranks, with their connectingrods work ing on the wrist pins thereof, the connectingrod of the engine being also connected to one of said wrist-pins, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM M. MIXER.

Vitnesses:

VAL A. PoLLocK, ANTHONY GREF. 

